bài giảng tiếng anh 12 unit 9 deserts

Unit 9:
Deserts
Period 57:
L e sson 3:
Listening
1.iwfooedr =>
2.olocyn
=>
3.mcileta =>

4.aintnuom =>

5.htowrg =>
Rearrange letters into meaningful words
firewood
colony
climate
mountain
growth
GAME
Before you listen
Before you listen
What is a
desert?
How is a desert
formed?
Can human beings
make a desert?
Why/Why not?
Work in pairs:
ask and answer

the following
questions
* Listen and repeat
Frightening speed (n)
Australia (prop.) [ s'treiljə]ɔ
Sahara (prop.)
firewood (n) ['faiəwud]
petroleum (n) [pə'trouliəm]
Mauritania (prop.)
partly (adv.) ['p :tli]ɑ
rabbit (n) ['ræbit]
Nhanh như chớp
Nước Úc
Sa mạc Sahara
Củi
Dầu mỏ
Nước Mauritania
Một phần nào đó
Con thỏ
canal (adj.) [kə'næl]
Kênh đào
While you listen
While you listen
Task 1
Task 1
You will hear an expert talking
You will hear an expert talking
about deserts, what they are
about deserts, what they are
and how they are formed. Listen

and how they are formed. Listen
to his talk and decide whether
to his talk and decide whether
the statement are true (T) or
the statement are true (T) or
false (F)
false (F)

1. In a desert, everything is hard.
2. Only trees with hard needles can grow
in a desert.
3. Space seems to have no limit in the
desert.
4. Nature causes the change in the size
and location of the world’s desert.
5. Rabbits are one of the agents that help
make desert in Australia.
T F




Task 1: Listen and decide whether the statements
are true (T) or False (F).
Sc 1
1. What central theme does the talk examine?
A. It examines deserts, what they are and how they are formed.
A. It examines deserts, what they are and how they are formed.
B. It examines plants and animals.
B. It examines plants and animals.

C. It examines sand in deserts.
C. It examines sand in deserts.
D. B & C are correct.
D. B & C are correct.
2. What is a desert?
A. It is a hot, dry, sandy place.
B
B. It is also a beautiful land of silence and space.
C
C. The sun shines, the wind blows, and time and space seem endless.
D
D. A, B, and C are correct.
3. What causes the growing of the world’s deserts?
A. Sand
B. Nature.
C. Nature and humans.
C. Nature and humans.
D. Humans.
D. Humans.
4. In what way do rabbits contribute to the growing of deserts in Australia?
A. They contribute by cutting every plant they can find.
A. They contribute by cutting every plant they can find.
B.
They contribute by eating every plant they can find. This makes the land
They contribute by eating every plant they can find. This makes the land
become desert.
become desert.
C. They contribute by planting every plant they can find.
C. They contribute by planting every plant they can find.
D. They destroy every plant they can find

D. They destroy every plant they can find
Task 2: Listen again and answer the following questions
Sc 1
In the developing countries, (1) ……………… of the people
use wood for cooking and heat. They cut down trees for
firewood. But trees are important. They cool the land under
them and keep the sun off (2) …………………… When leaves fall
from a tree, they make the land richer. When trees are gone, the
small plants die and the land becomes desert.
Humans can make deserts, but humans can also (3)….
…………… their growth. Algeria planted a green wall of trees
across the edge of the Sahara to stop the desert and sand from
(4) ……………… .Mauritania planted a similar wall around its (5)
………… . Iran puts a thin covering of petroleum on sandy areas
and plant trees. Other countries build long (6) …………… to
bring water to the desert areas.
90 percent
smaller plants
prevent
spreading
capital
canals
Task3: Listen again and fill in each blank with one of the
words in the box below:
Protect Larger plants 90 percent 19 percent
Canals Bridge Spreading Capital Smaller plants
After you listen
After you listen
Work in groups. Summary the main ideas of
Work in groups. Summary the main ideas of

the expert’s talk. Use the following
the expert’s talk. Use the following
suggestions:
suggestions:
What is a desert?
What is a desert?
What causes the growth of a desert?
What causes the growth of a desert?
What should humans do to prevent
What should humans do to prevent
the growth of deserts?
the growth of deserts?
HOMEWORK
HOMEWORK
Base on your summary, write
Base on your summary, write
a short paragraph about the
a short paragraph about the
deserts (about 80-100 words)
deserts (about 80-100 words)
Thank You!
Thank You!